<!DOCTYPE html>
<html lang="zh-CN">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Title</title>

    <link rel="stylesheet" href="style.css">
</head>

<body>
    <div id="app">
        <div v-if="books.length">
            <table>
                <thead>
                    <tr>
                        <th>编号</th>
                        <th>书籍名称</th>
                        <th>出版日期</th>
                        <th>价格</th>
                        <th>购买数量</th>
                        <th>小计</th>
                        <th>操作</th>
                    </tr>
                </thead>
                <tbody>
                    <tr v-for="(book,index) in books">
                        <td>{{book.id}}</td>
                        <td>{{book.name}}</td>
                        <td>{{book.date}}</td>
                        <td>￥{{book.price.toFixed(2)}}</td>
                        <td>
                            <button @click="book.count++">+</button> {{book.count}}
                            <button @click="book.count--" v-bind:disabled="book.count<=1">-</button>
                        </td>
                        <!--  v-bind:disabled="book.count<=1" 当书籍数量小于等于1时，设置-按钮为不可操作 -->
                        <td>{{xiaoJi(index).toFixed(2)}}</td>
                        <td>
                            <button @click="removeBook(index)">移除</button>
                        </td>
                    </tr>
                </tbody>
            </table>
            <h2>总价格：￥{{totalPrice.toFixed(2)}}</h2>
        </div>
        <h2 v-else>购物车是空的!</h2>
    </div>


    <script src="../js/vue.js"></script>
    <script src="main.js"></script>

</body>

</html>